-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 ===================================================================== Red Hat Security Advisory Synopsis: Important: libssh2 security update Advisory ID: RHSA-2019:1943-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2019:1943 Issue date: 2019-07-30 CVE Names: CVE-2019-3855 CVE-2019-3856 CVE-2019-3857 CVE-2019-3863 ===================================================================== 1. Summary: An update for libssh2 is now available for Red Hat Enterprise Linux 7.4 Extended Update Support. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section. 2. Relevant releases/architectures: Red Hat Enterprise Linux ComputeNode EUS (v. 7.4) - x86_64 Red Hat Enterprise Linux ComputeNode Optional EUS (v. 7.4) - noarch, x86_64 Red Hat Enterprise Linux Server EUS (v. 7.4) - ppc64, ppc64le, s390x, x86_64 Red Hat Enterprise Linux Server Optional EUS (v. 7.4) - noarch, ppc64, ppc64le, s390x, x86_64 3. Description: The libssh2 packages provide a library that implements the SSH2 protocol. Security Fix(es): * libssh2: Integer overflow in transport read resulting in out of bounds write (CVE-2019-3855) * libssh2: Integer overflow in keyboard interactive handling resulting in out of bounds write (CVE-2019-3856) * libssh2: Integer overflow in SSH packet processing channel resulting in out of bounds write (CVE-2019-3857) * libssh2: Integer overflow in user authenticate keyboard interactive allows out-of-bounds writes (CVE-2019-3863) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section. 4. Solution: For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 After installing these updated packages, all running applications using libssh2 must be restarted for this update to take effect. 5. Bugs fixed (https://bugzilla.redhat.com/): 1687303 - CVE-2019-3855 libssh2: Integer overflow in transport read resulting in out of bounds write 1687304 - CVE-2019-3856 libssh2: Integer overflow in keyboard interactive handling resulting in out of bounds write 1687305 - CVE-2019-3857 libssh2: Integer overflow in SSH packet processing channel resulting in out of bounds write 1687313 - CVE-2019-3863 libssh2: Integer overflow in user authenticate keyboard interactive allows out-of-bounds writes 6. Package List: Red Hat Enterprise Linux ComputeNode EUS (v. 7.4): Source: libssh2-1.4.3-11.el7_4.1.src.rpm x86_64: libssh2-1.4.3-11.el7_4.1.i686.rpm libssh2-1.4.3-11.el7_4.1.x86_64.rpm libssh2-debuginfo-1.4.3-11.el7_4.1.i686.rpm libssh2-debuginfo-1.4.3-11.el7_4.1.x86_64.rpm Red Hat Enterprise Linux ComputeNode Optional EUS (v. 7.4): noarch: libssh2-docs-1.4.3-11.el7_4.1.noarch.rpm x86_64: libssh2-debuginfo-1.4.3-11.el7_4.1.i686.rpm libssh2-debuginfo-1.4.3-11.el7_4.1.x86_64.rpm libssh2-devel-1.4.3-11.el7_4.1.i686.rpm libssh2-devel-1.4.3-11.el7_4.1.x86_64.rpm Red Hat Enterprise Linux Server EUS (v. 7.4): Source: libssh2-1.4.3-11.el7_4.1.src.rpm ppc64: libssh2-1.4.3-11.el7_4.1.ppc.rpm libssh2-1.4.3-11.el7_4.1.ppc64.rpm libssh2-debuginfo-1.4.3-11.el7_4.1.ppc.rpm libssh2-debuginfo-1.4.3-11.el7_4.1.ppc64.rpm ppc64le: libssh2-1.4.3-11.el7_4.1.ppc64le.rpm libssh2-debuginfo-1.4.3-11.el7_4.1.ppc64le.rpm s390x: libssh2-1.4.3-11.el7_4.1.s390.rpm libssh2-1.4.3-11.el7_4.1.s390x.rpm libssh2-debuginfo-1.4.3-11.el7_4.1.s390.rpm libssh2-debuginfo-1.4.3-11.el7_4.1.s390x.rpm x86_64: libssh2-1.4.3-11.el7_4.1.i686.rpm libssh2-1.4.3-11.el7_4.1.x86_64.rpm libssh2-debuginfo-1.4.3-11.el7_4.1.i686.rpm libssh2-debuginfo-1.4.3-11.el7_4.1.x86_64.rpm Red Hat Enterprise Linux Server Optional EUS (v. 7.4): noarch: libssh2-docs-1.4.3-11.el7_4.1.noarch.rpm ppc64: libssh2-debuginfo-1.4.3-11.el7_4.1.ppc.rpm libssh2-debuginfo-1.4.3-11.el7_4.1.ppc64.rpm libssh2-devel-1.4.3-11.el7_4.1.ppc.rpm libssh2-devel-1.4.3-11.el7_4.1.ppc64.rpm ppc64le: libssh2-debuginfo-1.4.3-11.el7_4.1.ppc64le.rpm libssh2-devel-1.4.3-11.el7_4.1.ppc64le.rpm s390x: libssh2-debuginfo-1.4.3-11.el7_4.1.s390.rpm libssh2-debuginfo-1.4.3-11.el7_4.1.s390x.rpm libssh2-devel-1.4.3-11.el7_4.1.s390.rpm libssh2-devel-1.4.3-11.el7_4.1.s390x.rpm x86_64: libssh2-debuginfo-1.4.3-11.el7_4.1.i686.rpm libssh2-debuginfo-1.4.3-11.el7_4.1.x86_64.rpm libssh2-devel-1.4.3-11.el7_4.1.i686.rpm libssh2-devel-1.4.3-11.el7_4.1.x86_64.rpm These packages are GPG signed by Red Hat for security. Our key and details on how to verify the signature are available from https://access.redhat.com/security/team/key/ 7. References: https://access.redhat.com/security/cve/CVE-2019-3855 https://access.redhat.com/security/cve/CVE-2019-3856 https://access.redhat.com/security/cve/CVE-2019-3857 https://access.redhat.com/security/cve/CVE-2019-3863 https://access.redhat.com/security/updates/classification/#important 8. Contact: The Red Hat security contact is . More contact details at https://access.redhat.com/security/team/contact/ Copyright 2019 Red Hat, Inc. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIVAwUBXUAJg9zjgjWX9erEAQjU+xAAiz4nZ+jJLtCpmhpZ0T4jhP13V4DqcfUQ MUZKNOBBhzlevn+qi2ArbZreg/ZLzGS3xbt7hX2MzamnuPF+/W7XO8koECRaLyOu cwKm5mcFQ3SRZKmTcpcGl6Y5j0npOuQx2UJiDRVe4Zcb3Tf0d5f3lg7dayLP9RFG zdXsm1Jn5VJYaNZbs7HgyIBktJKlnFT4qu0DmKyWY/b8sOnx3Oseiy4pX8dlZ3QD R+W8E1iaAcpZ62X305LyKuKysTLy5L/Ym5xnMlAgptcEoS2pLIO+3V9kuUZ7/Izm CuuefspEPVVHGc//PJtD0oafDZ6HAhEAF00G0NZofos9/tgTn0JkWUUq7UQbSSPf RVuyByP3UhZCoRsqkKnv8ACpYl7S5Vn96nSC854mmYVNwyU9ZPHtLdjrM2rH+iJs Jz21IZ9qeJbCysIBy2ptXjbmDvm6a/S2kgj4649ogzveUSZGM5abImLpSeDlPzV6 Iajo8of0e2dL3mse247caenC+YLUjgcW3xIsdRQO4xOS2bSrCraWjSsVD26h5brr lCa+KL5FZObYBqX4Fa2u4HAhKopYm6dr3Mzlt0yISHW4xokn3dSTVsl0dOOL330k 2Fjr8WzWvsY/pGWjfE+PrQbrBK5rgZCAV49CIt9CUJwOCWVw2XEvZygj21rs7JD6 sCL11mIiwWw= =Eh8E -----END PGP SIGNATURE----- -- RHSA-announce mailing list RHSA-announce@redhat.com https://www.redhat.com/mailman/listinfo/rhsa-announce